Effects of alcohol intake on blood pressure and sympathetic nerve activity in normotensive humans: A preliminary report

Guido M. Grassi, Virend K. Somers, William S. Renk, Francois M. Abboud, Allyn L. Mark

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

Although several epidemiological studies have shown an as-sociation between alcohol consumption and high blood pres-sure, the mechanisms involved in the pressor effect of alcohol are not clear. We hypothesized that alcohol might increase blood pressure at least in part by increasing sympathetic nerve activity. In a double-blind, placebo-controlled study of seven normotensive subjects (mean age ± s.e.m. 24.0 ± 1.5 years), we investigated the effects of oral administration of alcohol (0.75 g/kg body weight, diluted in orange juice) or vehicle on arterial blood pressure, heart rate and muscle sympathetic nerve activity, measured directly in the peroneal nerve by mi-croneurography. Plasma ethanol levels increased from 0 (con-trol) to a range of 47.7 ± 7.6 to 53.3 ± 5.0mg/dl 30 min after alcohol intake. This increase in plasma ethanol was ac-companied by a significant increase (P <0.05) in mean blood pressure, heart rate and sympathetic nerve activity. The vehi-cle did not affect any of these parameters. Our data suggest that acute oral administration of a moderate dose of alcohol induces a pressure effect through activation of sympathetic nervous outflow.

Original languageEnglish
Pages (from-to)S20-S21
JournalJournal of Hypertension, Supplement
Volume7
Publication statusPublished - 1989

Fingerprint

Alcohols
Blood Pressure
Oral Administration
Ethanol
Heart Rate
Peroneal Nerve
Alcohol Drinking
Epidemiologic Studies
Myocardium
Arterial Pressure
Placebos
Body Weight
Pressure

Keywords

  • Alcohol
  • Blood pressure
  • Microneuro-graphy
  • Reflex circulatory control
  • Sympathetic nerve activity

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine
  • Internal Medicine
  • Endocrinology

Cite this

Effects of alcohol intake on blood pressure and sympathetic nerve activity in normotensive humans : A preliminary report. / Grassi, Guido M.; Somers, Virend K.; Renk, William S.; Abboud, Francois M.; Mark, Allyn L.

In: Journal of Hypertension, Supplement, Vol. 7, 1989, p. S20-S21.

Research output: Contribution to journalArticle

Grassi, Guido M. ; Somers, Virend K. ; Renk, William S. ; Abboud, Francois M. ; Mark, Allyn L. / Effects of alcohol intake on blood pressure and sympathetic nerve activity in normotensive humans : A preliminary report. In: Journal of Hypertension, Supplement. 1989 ; Vol. 7. pp. S20-S21.
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